Slidable side jaw wrench



May 7, 1957 P. ROSS! ETAL 2,791,143

SLIDABLE SIDE JAW WRENCH Fiied July 21, 1955 INVENTOR. Paul ROSSI ByAnclrgw .F'riedrich ATTORNEY SLIDABLE SIDE JAW WRENCH Paul Rossi,Warren, Ohio, and Andrew E. Friedrich, Princeton, N. L; said Friedrichassignor to said Rossi Application July 21, 1955, Serial No. 523,443

1 Claim. (Cl. 81-165) This invention relates to a crescent type wrenchconstruction.

It is an'object of the present invention to provide in a crescent typewrench means for securing the nut between the jaws of the wrench as thewrench is turned and to prevent the wrench from slipping from the nut orbolt and wherein the retaining means is adjustable automatically withthe adjustment of the jaws relative to each other for the different sizenuts or bolt heads.

It is another object of the invention to provide in a crescent typewrench an enlarged head to provide weight upon the head so that it canbe efiectively used for tapping a nut or bolt to loosen the same or in ahammer fashion to, in this way, add to the purpose of the wrench and torender it durable for this use without injury to the parts thereof.

It is another object of the invention to provide a crescent type wrenchwherein the handle may be elevated from the jaw parts so that the use ofthe wrench may be had in a hole where the nut or bolt may be located andto elevate the handle from the body to which the nut or bolt is attachedand so that the hand and fingers can lie under the handle of the wrenchwhen working the wrench and allowing for flush contact of the jaws withthe nut or bolt.

It is still another object of the invention to provide a crescent typewrench construction wherein the jaws can be attached to a nut or boltand the handle pivoted upon the jaws for vertical movement to any numberof different adjusted elevated positions and to allow room for the handunder the handle while working the wrench.

It is a still further object of the invention to provide in a wrenchhaving an enlarged jaw head wherein the engaging surfaces of the headwith the surface of the work body in which the bolt or nut is fitted,will cause the handle to be extended upwardly at an angle to the workbody surface.

Other objects of the invention are to provide a crescent type wrenchconstruction, having the above objects in mind, which is of simpleconstruction, inexpensive to manufacture, has a minimum number of parts,durable, compact, easy to operate and adjust, of pleasing appearance,effective and efiicient in use.

For other objects and for a better understanding of the invention,reference may be had to the following detailed description taken inconnection with the accompanying drawing, in which:

Figure 1 is a top plan view of the crescent type wrench embodying thefeatures of the present invention according to one form thereof;

Fig. 2 is a fragmentary top elevational view of the wrench with portionsbroken away to show the interior construction thereof;

Fig. 3 is a fragmentary sectional view taken on line 33 of Fig. 2;

Fig. 4 is a fragmentary sectional view taken on line 4-4 of Fig. 2;

Fig. 5 is a side elevational view of the wrench showing the tapered headconstruction and looking upon the side of the wrench that has themovable jaw;

Fig. 6 is a perspective view of a modified form of the invention whereinthe handle is pivotally connected to the jaw elements to permit the sameto be elevated from the work body;

Fig. 7 is a transverse sectional view taken on line 77 of Fig. 6.

Referring now particularly to Figs. 1 to 5, 10 represents a fixed jawpart or head to which a handle 11 is integrally connected. The shape ofthis jaw part is such as to provide opposite faces 12 and 13 which areinclined and converge toward the outer end of the jaw body whereby toincrease the weight of the wrench providing a thick, heavy head portionso that it may be used to tap or strike bolts or nuts or even tostraighten small pieces of material upon a fiat surface. Journalled inthis fixed jaw part is a hand operated worm 14 that engages rack teeth15 of a movable jaw part 16 slidable in the fixed jaw part 10 and in aslot 17 provided therein. This movable jaw has an inclined extension 18,inclined from the longitudinal axis of the movable jaw and which engageswith an adjustable nut retaining member 19 by extending through anopening 20 of the member 19 so that as the movable jaw is adjusted, thenut engaging member 19 or slide will be correspondingly moved toaccommodate either the smaller or larger nut. The nut engaging member 19has an inwardly extending shoulder 21 that will engage the nut in themanner as shown in Fig. 1. This nut engaging member 19 is slidable in aslot or recess 22 in the fixed jaw member 10 that serves to retain andguide the member 19 as it is adjusted. The inclined extension 18 extendsinto a recess 23. The opposite surfaces of the movable jaw 16 arelikewise inclined similarly to the inclined surfaces 12 and 13 of thefixed jaw memher or head so that as the wrench is used, it can restabout the nut or bolt on one of the surfaces 12 and 13 and such as 'toextend the handle 11 in an inclined position and upwardly so as topermit the hand of the user to surround the handle for a good gripthereon and without interference from the surface of the work body. Thewrench can be used on either face and at the same time it can be usedfor tapping a nut or bolt head or for working on pieces of material upona flat surface to straighten them.

The projection 21 will engage the nut which may be of either square orhexagonal shape and as the wrench is used, there is no chance of thesame slipping ofi. the nut or bolt head. The fixed jaw member has aninclined face 23 and the movable jaw member has a differently inclinedface 2 5 intersecting with the inclined face 23. These inclined faces,which are oppositely inclined, will accommodate a hexagonal nut or bolthead.

In Fig. 6 and in Fig. 7, there is shown a modified form of theinvention. According to this form of the invention a fixed jaw or headpart 26 is provided with parallel side faces and a keyway slot 27 intowhich a rack portion 28 of a movable jaw 29 extends to be worked by ahand worm 30 journalled in the jaw 26. The jaw 26 has a hinge projection31 to which spaced hinge portions 32 and 33 of an upwardly offset handle34 are hingedly connected by a hinge pin 35. This upwardly offset handle34 permits the lowering of the head part into an opening in the workbody in such a manner that the hand can be extended about the handlewithout the fingers engaging with the surface of the work body and sothat the tool can be turned without the hand engaging with the surfaceof the work body. A nut holding or engaging slide 36 is operable in arecess 37 in the same manner as above described in connection with thefirst form of the in- Patented'May 7, 1957 vention. This slide has aprojection 38 for engaging the nut. The fixed jaw 26 has an inclinedface 39 and the movable jaw 29 has an inclined face 40 that intersectswith the face 39 of the fixed jaw 26. These faces will accommodateadjacent sides of a hexagonal nut or bolt head.

It should now be apparent that there has been provided in a crescenttype wrench means whereby a wrench will be held upon a nut or bolt headas it is used and without slipping from the same, It will be further apparent that added weight has been given to the wrench by virtue of theinclined faces so that the wrench can be used to tap bolts and nut headsand as well be used to act on pieces resting on a fiat surface for thepurpose of straightening them.

It will also, be apparent that adequate provision has been made in bothforms of the wrench to elevate the handle so that a good grip can be hadon the same when working upon a flat bodied surface or upon the wrench'head lying in a depression in which the nut or bolt head may bedisposed.

While various changes may be made in the detail construction, it shallbe understood that such changes shall be within the spirit and scope ofthe present invention as defined by the appended claim.

What is claimed is:

A wrench construction comprising a fixed jaw part, a movable jaw partadjustable in the fixed jaw part, a nut or bolt head engaging memberslidable in the fixed jaw part and means operable in response tomovement of the movable jaw part for adjusting the nut or bolt headengaging member, said means for adjusting the nut engaging membercomprising an extension upon the movable jaw part inclined to thedirection of adjustment of the movable jaw part in the fixed part andsaid nut or bolt head engaging member having an opening through whichthe inclined extension passes to work the nut or bolt head engagingmember automatically as the movable jaw part is adjusted.

References Cited in the file of this patent UNITED STATES PATENTS1,444,793 Keller Feb. 13, 1923 2,389,933 Rober Nov. 27, 1945 2,596,266McEnroe May 13, 1952 2,648,243 Chappel Aug. 11, 1953 2,680,985 Fish June15, 1954 FOREIGN PATENTS 602,154 France Dec. 18, 1925

